Step 1: Poet and poem.
The poem is written by Adrienne Rich, a feminist poet.
Step 2: Central theme.
Aunt Jennifer lives under the weight of male dominance and marital oppression. However, her embroidered tigers represent freedom, courage, and power.
Step 3: Symbolism.
The tigers symbolize what Aunt Jennifer longs for – a fearless, independent spirit.
Step 4: Conclusion.
Thus, the poem highlights women's oppression and their silent desire for freedom.
Final Answer: \[ \boxed{\text{The poem contrasts oppression in life with freedom in art.}} \]